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Uploaded on Mar 30, 2010
Which is more likely? That missionaries generate converts through the power of holy inspiration? Or that missionaries are really clever marketers?
EDIT: Ray's method here is probably more than just a foot-in-the-door effect. You will also notice a few "door-in-the-face" questions as well. These are designed to elicit an immediate rejection, followed by a lesser concession. See reference #4 at the end for an experimental demonstration of this effect.